Symptoms

You create a new public folder database on a Microsoft Exchange Server 2010 Service Pack 1 (SP1) server. However, the hierarchy is not replicated from other public stores to this new database. Additionally, the following events are logged in the Application log:

Note The events are logged every time when the server tries to backfill the hierarchy.

Cause

This issue occurs because ReplidMap in the public folder database contains a zero GUID.

Resolution

To resolve this issue, install the following update rollup:

2579150 Description of Update Rollup 4 for Exchange Server 2010 Service Pack 1
After you apply this update on all the computers that have public folder databases, follow these steps:

  1. Unmount all public folder databases in the organization.

  2. Run the following command on all the computers that have public folder databases in the organization:

    isinteg -s <server> -test replidguid -fix

  3. Mount all public folder databases.

Notes

  • The command must be run simultaneously on all the computers that have public folder databases in the organization.

  • Do not follow these steps if there are any public folder servers that are not running Update Rollup 4 for Exchange Server 2010 SP1, such as Exchange Server 2003, Exchange Server 2007, or earlier versions of Exchange Server 2010.

  • If you try to run the command on only a subset of computers that have public folder databases in the organization, public folder replication issues occur. Additionally, the issues cannot be resolved.

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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